Pipe wrapping machine



Feb. 3, 1942. y A. J. PFoHL TAL K 2,271,523

PIPE WRAPPING MACHINE l Filed Aug. 2, 1940 l 4 sheets-sheet 1y 1N VENTORS AN THON YJ, PFOHL Feb. 3, 1942. A. J, PFQHL Em .2,271,528

PIPE IRAPPING IACHINE Filed Aug. 2, 1 940 4 sheets-sheet 2 r y ANT/Jour J. Prom. cH lue-.s n. w00

Feb. 3, 1942. A. J. PFOHL :TAL ,2,271,528

r PIPE 'nunmlmcxmm Y 'Filed Aug. 2, 1940 4 sheets-Sheer;

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' I PIPE WRAPPING' MCS'NE 4 Sheets-Sheet 4 File@ Aug.' 2, 1940 or felted fabric. pertains to movably supporting a supply roll'or drawings, in which:

Patented Feb. 3, 1942 Anthony J. Prom, Loekiand, and omnes M. Wood, Edgemont, Ohio, assignors to The Philip Carey Manufacturing Company, a corporation of Ohiov Application August l2, 1940, semi No. 349,776

, 11 claims. This invention reiates to wrapping bodies,

" more particularly substantially cylindrical bodies,

suchas pipes, conduits and the like, with a protective covering, such as fiexible strips of woven More specifically the invention rolls ofthe covering material on the pipe or conduit line. for being progressively 'actuated along the pipe orv conduit line as the roll supply is helically applied around the line with the adjacent margins of the strip' abutting or overlapped and rolled down to snugly and completely cover the pipe or conduit line. i

The movable support forthe supply rolls of covering material is 'connected with a frame whereby it may b e advantageously driven by any suitable power unit, such as a motor'or the like.v The invention can be used for wrapping a pipe or conduit line with or without an adhesive coating material, such as asphalt or the like, applied between the wrapped covering and the bodies being wrapped.

For a better understanding of the invention, reference may be made to the accompanying Fig. 1 is a right front -perspective view of the wrapping device, looking at its advanced end, with a portion of pipe upon which the covering is being wrapped;

Fig. 2 is a left front perspective view of the same device, looking at said advanced end, with the said portion of pipe upon which the covering is being wrapped;

, Fig. 3 is a side elevation of the device, with a portion of the pipe, and with only fragments of the motor or engine shown;

Fig. 4 is a rear perspective view, looking at'the trailing end, of the upper section of the housing, with certain of the parts attached thereto;

Fig. 5 is a like view of theupper section of the rotary ring, with certain'of the parts attached thereto;

Fig. 6 is a like view of the lower section of said ring, with certain of the parts attached thereto;

Fig."7 is a like view of the lower section of the housing, with certain of the parts attached thereto;

Fig. 8 is a detail perspective view of one of the roller 'arm bearings with the roller arm bar mounted therein; v

Fig. 9 is alike view of one of the spring arms;

Fig. 10 is an axial section of one of the winding rollers and its yoke. with the yoke swivel and roller arm and part of the arm bar in plan; and

Fig. l1 is a section on theplane of the line I I-I I of Fig. 10, including the roller arm springs and the spring arm, with part of the roller arm in. elevation.

Referring specifically to the drawings in which like numerals are used to designate like parts, the wrapping device comprisesa housing or frame-member I composed of annular rings -2 and 3 fastened together in spaced apart relation 4by bolts 4.v The annularrings, for convenience in assembling the housing on a pipe line, may be divided into two 'or more segments or parts. Rollers 5 are disposed about the frame or housing member I and ycan be mounted on the bolts 4 in the space between the rings 2 and 3. Any number of vthese rollers 5 may be provided, but preferably fiveto ten of them are 'disposed' as a raceway for rotatably supporting therein ring 8 hereinafter described. I'l'he tops of the two rings 2 and 3 forming the frame or housing Amember 'are advantageously provided with extensions or v fianges 1 to which an angular bracket or shelfA 8 may be bolted at 9 for mounting motor'I and gear driving mechanism hereinafter described. A tool box II may advantageously be attached at I2 to-frame member l to extend along one side edge of the shelf.

the rotor'shaft I8 and disposed to mesh with a v gear I8 of a transmission mechanism connecting with gear'mechanism hereinafter referred to.

Two spaced apart pedestals I9 are supportedl on thev shelf I, with raising blocks I9' disposed between the pedestals and the shelf. Journalled on these pedestals I0 is a jack-shaft 20 to which is fixed the gear Il and a sprocket 22. These' pedestals are, mounted 'near the outer end of the shelf on the portion of reduced width. -At the outside y. corner of the shelf 8 'a bearing -2Il' is bolted to journal an en d of shaft 2l on which is fitted sprocket -wheel 23. Sprocket chain 22' n connects the sprocket wheels 22'and 23.

'I'he end of shaft 2|. opposite to that onv which sprocket v2l is mounted, is jcurnalled in the bearing 2B, on the housing' member l. Gear 21 is fixed to shaft 2| and arranged ,in position to mesh with the annular gear 28. A friction operated to connect and disconnect the motor lby means of clutch handle 29 pivoted at 30 upon the arm tl, projecting from and ati-,ached to the 5 frame member` I. The clutch'handle is disposed ,Y

RElSSUED JAN 16 1945 c in any suitable position convenient to the operation of the clutch device.

Rings 2 and 3 are preferably made in sections and connected by the bolts on which the rollers vare mounted will comprise segmental units A segmental units may be tightly brought together in abutting relation when the hooks 32 are fitted over bolts 35 provided in the ends' of the other segmental unit.

The annular gear 28 is attached to the side of rotary ring .6, preferably made in sections and attached together by links 36 tting within cleats 31 on the adjacent ends of the sections. The

rotary ring 6, or the sections thereof, is formed with a base part 33 having an annular fin 39 projecting from its outer peripheral wall. The side edges of the fin may be -recesses to receive therein machined bearing rings 40. The fin provides an annular bearing surface or inner raceway for the rollers 5 mounted in the frame or` casing member.

To the inner wall of the rotary ring are attached in spaced relation pairs of arms 4| and 42, each arm having its ends ppjecting out from opposite sides of the ring. About four pairs of these arms are disposed about the inner Wall of the ring. Arms 4| are in the form of a round rod with a holding bracket 43 therefor having integral webs 64 for securing the bracket 43'to the inner wall of the rotary ring. Collars 44' are fired to the arms 4| to bear against the bracket 43 and hold the arm in position. Arms 42 have an intermediate offset 45 to provide a recess 46 with side edges 41 for seating against the inner wall of the rotary ring with the side edges '41 iitting against the side edges of the rotary ring. Recesses 48 are provided for receiving bolts 49 by which the arms may be fixed to therotary ring. l

The arms 4| provide supports on which bracket 50 is mounted with the recess 5| of the bracket receiving the end of an arm 4|. The bracket 50 is positioned upon the end of the arm 4| and rotatably secured in position by collarsV 52 fixed to the arm 4| and bearing against the bracket. A holder 53 is connected to the bracket 50 by a swivel connection composed of a stud 54 fitting in the socket 55 and secured by pin 56 bearing against washer 51. Holder 53 lis provided with a.

seat 58 conforming with'the seat 53 of holder 60 in which roll 6 I, preferably of rubber, is mounted on shaft 62. Seat 59 is provided with elongated recesses 63 to permit angular adjustment of the roller 6|. Roller 6| is mounted on roller bearings C of conventional construction.

A rod 64 pivoted to bracket 50 at 64' extends to and through an opening 65 in the end of arm 42. Disposed between the bracket and arm about the rod 64 are a pair of springs 66 and 61 of different tension, spring 66 pressing the roller against the wrapped surface of the pipe and spring l1 preventing the roller from dropping away from the pipe when the roller is beneath thepipe line while being rotated thereabout. One end of spring 31 knob 50' and recess 65 hold the spring 61 in proper positionl and prevent its displacement. The smaller spring 66 is held in position within the'hollow core of spring 61 by means of rod 64, which it surrounds. A pair of rollers 6| are associated with each pair of arms 4| and 42, one roller being on the ends of each pair of arms vto assume proper balance of the wrapping device voperators of the vdevice to lift or tilt the device on the conduit line.

At some convenientpoint a counterweight 10 may be provided opposite a supply roll supporting bracket 1| to counterbalance it. It may be conveniently secured to the inside wall of ring 6. The supply roll supporting mechanism can be conveniently secured in position by a bar 12 attached to ring 6. The roll carrying mechanism comprises a bracket having sides 13 and a cross piece T3', angularly adjustable on pivot 12' in relation to the 'bar 12 by means of elongated slots 14 into which securing `bolts 15 on bar 12 project. One end of the bracket has a pin 16 extending between sides 13 on which the wrapping roll supply 11 is carried, and the other end of the bracket is provided with a roller 18 over which the wrapping material is first spread as it is being applied to the pipe body. Roller 18 ,is mounted in clips 19 attached to the sides 13 of the bracket.

'I'he feed supply roll of wrapping material is disposed at the same angle to the pipe line as are the rollers 6|. 'I'hus as the rotary ring is actuated by the gear mechanism to revolve relatively to the stationary frame member, the device will move valong the length of the pipe line with simple in construction and disposed to be adapted on pipe lines of different diameters without difficulty of adjustment. The small spring 66 keeps the rollers 6| continuously pressed against the pipe line, and the large springs 61 bear the weight seats in the recess formed in the end of arm L 42 and the other end abutting against 'the bracketY 50, around the knob 50 on the bracket 5|! where of the machine` and keep it automatically centered. The entire wrapping device is supported on the large springs.

In order to'keep the supply reel from freely unwinding, an arm 60, pivoted at 8|, may be conveniently pressed against the roll by means of springs 82, one end of which engages the side 13 of the reel support and the other end engagesv some part of the arm 80. 'I'he springs are kept under toi-tional strain to continuously press the arm 30 against the Vsupply roll. A link 83 may also. be connected to hooks 84 and 85 disposed respectively on the arm 12 and arm 80 for holding the arm 66 back out of position when supply vroll 11 is changed. 1

VArespect to direction of travel, a reel of wrapping material supported on the ring in advance of the traction rollers, and a means on the frame for revolving the ring in such direction as to cause the traction rollers to move about the wrapped pipe. i

2. A pipe Wrapping machine comprising a frame, a ring adapted to surround the pipe and rotatably mounted on the frame, traction rollers mounted on the ring and angularly disposed with respect to direction of travel, resilient means between the traction rollers and ring to resiliently support the frame and ring, areel of wrapping material supported on the ring in advance of the traction rollers, and a means on the frame for revolving the ring in such directionl as vto cause the traction rollers to lmoveabout the wrapped pipe.

3. A pipe. wrapping machine comprising a frame, a ring adapted to surround the pipe and rotatably mounted on the frame, traction rollers mounted on each side of the ring and angular-ly disposed with respect to direction of travel, a reel of wrapping material on the ring in advance of the traction rollers, and a means on the frame for revolving the ring in such direction, as to cause Athe traction rollers to move about the Wrapped pipe. 4. A pipe wrapping machine comprising a frame, a ring adapted to surround the pipe and rotatably mounted on the4 frame, traction rollers disposed circumferentially pivoted to the ring to .form an opening for receiving a pipe line and angularly disposed with respect to direction of travel, a reel of wrapping material on the ring in advance of the traction rollers, spring means for actuating the rollers against the pipe line for resiliently supporting the machine in centered position on the pipe line, and means on the frame for revolving the ring in such direction as to cause the traction rollers to move about the Vwrapped pipe line. o

v5. A pipe wrapping machine comprising a frame, a ring adapted to surround the pipe'and rotatably mounted on the frame, a pair of arms mounted on the ring, a traction roller mounted on each end of the arm of one pair and angularly disposed-With respect to direction of travel, spring means connected with the end o'f the other arm of the pair and pressing the rollers against the pipe line, a reel of wrapping material-on the ring in advance of the traction rollers, and means on the frame for rotating the ring in such direction as to cause the traction rollers to move about the wrapped pipe line.

6. A pipe wrapping machine comprising a frame, a ring rotatably mounted on said frame and surrounding a pipe. traction rollers mounted on opposite sides of the ring and disposed at 'an angle to the direction of travel, a wrapping reel on the ring in advance of the traction rollers, a motor on the frame,A and'driving mechanism conf necting the motor to the ring 'for driving said ring in such direction Aas to cause the traction rollers to move about the wrapped pipe.

'7. A pipe wrapping machine comprising a frame,I a ring rotatably mounted on said frame l and surrounding a pipe, traction rollers mounted on the ring, and angularly disposed with respect to the direction of travel, areel of Wrapping material ysupported on the ring in advance of the rollers, and springsinterposed betweenl the rollers and ring vfor resiliently supporting the frame and ring upon the rollers and means on the frame for driving the ring in such direction as to cause the traction rollers to move-about the wrapped pipe.

8. A pipe Wrapping machine comprising' a frame, a ring rotatably mounted on said frame and surrounding a pipe, traction rollers pivotally f connectedv to and disposed on each side of the ring at an angle to the direction of travel, a reel support mounted on the ring, springs interposed between the rollers and ring for resiliently supporting the ring and frame upon the rollers, and motor means on'th frame connected to the ring for driving same in such direction as to cause the traction rollers to move about the wrapped pipe.

9. A pipe Wrapping machine comprising a frame, a ring rotatably mounted on the frame and surrounding a pipe, traction rollers pivotally connectedto and disposed about the pipe on ,opposite sides of the ring at an angle to the direc.-

-tion of travel, a reel support for wrapping material mounted on the ring and axially spaced therefrom, means for adjusting the angle of the rollers in respect to the pipe, springs interposed between the rollers and ring for resiliently supporting the ring and frame upon the rollers,vand means on the frame for rotating the ring around the pipe in such direction as to cause the wrapping' material to be applied and for the traction rollers to move about the wrapped pipe.

10. A pipe wrapping machine comprisingva frame, a ring rotatably connected to the frame about the pipe, traction rolls pivoted to the ring and disposed about the pipe on opposite vsides -of thering at an angle to the direction of travel,

a reel mounted on the ring for applying wrapping v' about the pipe, means for adjusting the angle of the rollers in respect to the pipe, means for adjusting the angle 'of the reel in respect to the pipe, resilient means connected to the traction rollers and ring for resiliently supporting said ring and frameupon 'the rollers, and means on the frame for revolving the ring in such direction as to causethe traction rollers to move about 'the wrapped pipe. l

11. A pipe wrapping machine comprising aframe andl ring rotatably mounted to the frame, arms disposed about the pipe and projecting from opposite sides of the ring, traction rollers pivoted to the arms on each.;v side of the ring and aneularly disposed 'to the direction of travel, resilient means connected to the rollers and the-ring Tor-l.

resiliently supporting the ring and frame. a reel mounted on the ring for supplying wrapping material to the pipe as the ring is rotated. and means on the trame for revolving the ring in such v direction as to cause the traction rollers to move about the wrapped pipe.

' ANTHONY J. PFOHL. CHARLES M. WOOD;v 

